baber/WOPTO huggingface dataset:
Patent CA-1170390-A (CA)
Inventor: PIESLAK GEORGE
IPC: C09J5/00
Filed: 1980-11-07
Granted: 1984-07-03
Abstract: A B S T R A C T     Metal substrates such as pipes and pipelines are often protected from corrosion by providing the substrate with a protective cover that is bonded to the substrate by means of a sealant.  In addition, a cathodic potential may be applied to the substrate to prevent loss of ions from the substrate due to electrochemical reactions.  This can, however, lead to disbonding of the cover by a phenomenon known as "cathodic disbonding".          Cathodic disbonding may be reduced according to the in-vention by incorporation in the sealant at least 0.01%, preferably at least 0.1% by weight of an organic, non-phenolic polyhydroxy compound,  for example a mono- or polysaccharide, a synthetic hydroxy-containing polymer or a polyhydric alcohol.   The sealant may be provided as a pre-coated layer on a cover for the substrate, preferably on a dimensionally heat-recoverable cover.
Patent CA-1139757-A (CA)
Inventor: REAP JAMES J
IPC: C07D239/28
Filed: 1980-11-27
Granted: 1983-01-18
Abstract: ABSTRACT OF THE DISCLOSURE           N-(Haloheterocyclic-aminocarbonyl)aromatic sulfonamides, useful as herbicides or as intermediates thereto, are made by contacting haloheterocyclic iso-cyanates with aromatic sulfonamides.  The resulting compounds may be further contacted with selected nucleophiles to yield herbicidal N-(substituted heterocyclic-aminocarbonyl)-aromatic sulfonamides.
Patent CA-1167186-A (CA)
Inventor: DEMETRESCU MIHAI C
IPC: G09G5/00
Filed: 1981-03-09
Granted: 1984-05-08
Abstract: DYNAMIC DATA DISPLAY SYSTEM, AS FOR USE WITH EEG          ABSTRACT OF THE DISCLOSURE A dynamic display system is disclosed for discrete events of complex data that are carried by discrete electrical signals which indicate values in three coordinates as triads.  One of the values may be an independent variable, e.g., time.  A cathode ray tube display apparatus (television monitor) with a plane surface is actuated by format signals to exhibit a pictorial three-dimensional perspective field of reference somewhat in the figure of an elongate box viewed in perspective.  The discrete electrical signals representative of data are processed to develop display signals to provide representative images in the field of reference.  Specifically, as disclosed, the data events or elements are manifest in the form of lines or linear symbols that indicate coordinate values by symbol height and position.  As disclosed, the independent variable, time, is scaled from an origin line in the field of reference to extend along the depth of perspective so that the linear symbols advance along the path of perspective to accomplish a dynamic display with the illusion of motion. The specific system herein displays EEG waves, effectively indicating the magnitude and frequency of individual brain waves with respect to time of occurrence.  Consequently, a marching display is provided revealing fresh information together with a recent history of events in chronological order and in a concise and readily perceivable form.  Additionally, recorded data may be later played back affording examination of a past history of EEG.  Furthermore, color is utilized in the display to add still another dimension, stressing the ranges of frequency.  A conventional television format is employed in which the linear symbols are formed along scanning lines of the television raster pattern, to provide a discrete and clear presentation.
Patent CA-1145110-A (CA)
Inventor: STATHOPOULOS NICHOLAS M
IPC: E04F11/025
Filed: 1981-03-30
Granted: 1983-04-26
Abstract: MODULAR STAIRCASE ASSEMBLY                 ABSTRACT OF THE DISCLOSURE         A modular staircase assembly having a plurality of individual interconnecting upper and lower stringer members including a means for coupling upper and lower stringer members and a means for interconnecting in longitudinal alignment adjacent stringer members.  Affixed to each set of upper and lower stringer members is a tread support for supporting a tread which is pivotally couplable to the associated upper and lower stringer sections so that when assembled and one of the upper and lower stringer sections is slid relative to the other the tread support moves so as to maintain a substantially horizontal position.  Rotatable foot pads and mounting pads coupled to either end of the assembled structure accommodate changes in orientation of the staircase assembly.
Patent CA-1154887-A (CA)
Inventor: ROTHLAUF ALAN P
IPC: G06F13/22
Filed: 1981-05-05
Granted: 1983-10-04
Abstract: FN 916,804 ASYNCHRONOUS MULTIPLEX SYSTEM          ABSTRACT           An asynchronous multiplex system allows full duplex communication between a plurality of terminals 18-28 each provided with a universal, asynchronous receiver-transmitter (UART) 42-52 which serially receives data infor-mation from a source thereof and is operative to produce a flag signal indicating that all of the bits of a data word have been received for storage therein and are ready for transmission.  The multiplex system includes a transmitter section 68 and receiver section 88 servicing a group of data terminals 18-28.  The transmission section includes a scanner 66 which sequentially interrogates the UARTS assoc-iated with each of the corresponding data terminals, and control logic 70 for causing the data words stored in a UART to be delivered to a transmission shift register 74 for temporary storage.  The transmitter section further includes an encoder 78 which develops a data code identifying the particular terminal from which the data word is being trans-mitted.  The control logic 70 causes the data word and corresponding code to be simultaneously transmitted as a single, multi-bit data message over a transmission path 12 to the receiving section of another multiplexer servicing another group of terminals.  The control logic 70 functions to suspend the scanning process until the transmission shift register 74 is emptied by transmission of the previous data message.  The receiving section 96 of each multiplexer includes a pair of shift registers 94, 98 for respectively receiving and storing the data word and data code portions of a data message originating from a terminal in another group thereof, and is provided with control logic 96 for delivering the data word to a terminal 18-28 identified by the data code.
Patent CA-1168628-A (CA)
Inventor: FRIESEN HENRY
IPC: B62D49/06
Filed: 1981-05-20
Granted: 1984-06-05
Abstract: PARKING STAND MEANS FOR TRACTOR-DISMOUNTED IMPLEMENT                   Abstract of the Disclosure A parking stand means for use as a strut between the ground and an elevated portion of a tractor-dismounted implement which has also an associated part resting on the ground so that the strut and a portion of the implement form a triangular support for the implement.  The strut is carried by the implement for uphill and downhill sliding between retracted and supporting or park positions and is also connected in such manner that it can swing forwardly toward the implement for retracted position and rearwardly to its park position.  A pin is provided for selectively locking the support in either position.  A further feature is a device for preventing rearward swinging of the support until it has traveled downhill through a predetermined range.
Patent CA-1165744-A (CA)
Inventor: BURI HERMANN
IPC: B65B7/28
Filed: 1981-05-20
Granted: 1984-04-17
Abstract: ABSTRACT      A heatable sealing head includes resilient, yielding cup springs which transmit pressure and heat to a thin cover insertable between the sealing head and the container rim. This cover, which may be metallic and is coated on the underside with a thermoplastic material, is thereby de-formed about portions of the container rim. The cup springs are disposed conically in their relaxed state so that their radially outer portions are situated closer to the cover than  their radially inner portions, by which they are fixed to the sealing head. For increasing the flexibility of the cup springs, a spacer piece is inserted between an outer cup spring facing the cover and at least one cup spring nearer the sealing head in order to keep the radially inner portions of these two cup springs spaced from one another while leaving a clearance space between the radially outer portions of the spaced cup springs.
Patent CA-1180499-A (CA)
Inventor: SCHWAB THOMAS H
IPC: C08G75/23
Filed: 1981-06-18
Granted: 1985-01-02
Abstract: A PROCESS FOR PREPARING POLYARYLENE POLYETHERS AND A NOVEL POLARYLENE POLYETHER                 ABSTRACT OF THE DISCLOSURE Described herein is an improved process for preparing polyarylene polyethers which comprises the steps of:          (a)  reacting a dihydric phenol with about a stoichiometric amount of an alkali metal, or an alkali metal hydride, hydroxide, alkoxide or alkyl compound in the presence of a solvent comprising a sulfone or sul-foxide or mixtures thereof, to form the alkali metal double salt of the dihydric phenol, (b)  removing water from the mixture by co-distillation using an azeotrope forming solvent, and (c)  admixing about an equimolar amount of a dinuclear dihalobenzenoid compound and effecting reaction of the dihalobenzenoid compound and the alkali metal double salt of the dihydric phenol in the sulfone or sul-foxide solvent at temperatures above about 100°C and below the decomposition temperature of the reactants, the solvent(s) and the polymer formed, wherein the improvement comprises:          (I)  adding an increment of the sulfone or sulfoxide solvent to a mixture of dihydric phenol and solvent, and then adding the remainder of the sulfone or sulfoxide solvent during step (b); or (II)  adding an increment of the sulfone or sulfoxide solvent to a mixture of dihydric phenol and solvent and then adding the remainder of the sulfone or sulfoxide solvent to the mixture simultaneously with the alkali metal or alkali metal hydride, hydroxide, alkoxide or alkyl compound, or (III)  adding an increment of the sulfone or sulfoxide solvent to a mixture of the dihydric phenol and solvent, adding another increment of the sulfone or sulfoxide solvent to the mixture simultaneously with the alkali metal or alkali metal hydride, hydroxide, alkoxide or alkyl compound, and then adding the remainder of the sulfone or sulfoxide solvent during step (b) or at the end of step (b).  Optionally, a fractionation column may be used to facilitate reaction system dehydration in step (I), or (II), or (III).          Also described herein is a novel polyarylene polyether which has a color factor of less than about 20.          S P E C I F I C A T I O N   2.
Patent CA-1171799-A (CA)
Inventor: ASHER WILLIAM J
IPC: F24F3/14
Filed: 1981-07-16
Granted: 1984-07-31
Abstract: ABSTRACT OF THE DISCLOSURE     A cyclic adsorption process is provided in which two zones are employed -- an adsorption zone and a heat storage zone.  The adsorption zone consists of an adsorbent material and a heat capacity material in amounts sufficient to provide for the rate of progression of the thermal front through the adsorbent to be substantially equal to the rate of progression of the mass transfer front through the ad-sorbent when a fluid mixture containing a solute for remov-al by adsorption is passed through that zone.  The heat storage zone consists of a heat capacity material.  In operation, as an air drying process for space conditioning, for example (see figure 5) ambient air (101) is passed through the adsorption zone (2) and then through the heat storage zone (3).  The moisture in the air is adsorbed by the absorbent and a portion of the sensible heat of the air stream and the heat of adsorption is stored in the adsorption zone (2) for at least a portion of the cycle and a portion of the heat is stored in the heat storage zone (3).          Thus, the hot dry air leaving the adsorption zone has its temperature lowered in heat storage zone (3).  The dry air (108) then is cooled further in an evaporative cooler (104).          During regeneration of the adsorbent, a fluid regenerating stream such as warm moist air from conditioned space (106) is passed through the heat storage zone (3) where it is partially heated.  At a point between the adsorption zone and the heat storage zone the regenerating fluid stream (112) is further heated, via an additional heat source (102), and passed through the adsorbent zone (2).  The amount of additional heat is sufficient to effectively desorb the adsorbent.
Patent CA-1160088-A (CA)
Inventor: VANDERWERF DENNIS F
IPC: F24S10/70
Filed: 1981-09-10
Granted: 1984-01-10
Abstract: - 21 -             204,022CAN/WDB            POINT FOCUS RADIATION CONCENTRATOR                          Abstract A point focus radiation concentrator using two linear echelon surfaces (40, 42) crossed at approximately 90 degrees with the two linear echelon surfaces (40, 42) having a generally cylindrical shape with a radius of curvature (52) approximately equal to the focal distance (10).  The two echelon surfaces (40, 42) may be formed on separate sheets positioned in close proximity to each other or may be formed on opposite sides of a single sheet.  The cross section of the curved concentrator surface may be circular or other aspherical shape, such as parabolic, ellipsoid and hyperbolic.
Patent CA-1170644-A (CA)
Inventor: DOMBEK BERNARD D
IPC: C07B61/00
Filed: 1981-09-11
Granted: 1984-07-10
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to the continuous manufacture of valuable alcohols containing 1 to 2 carbon atoms, especially glycol and ethanol from the reaction of hydrogen and carbon monoxide, by a homogeneous catalytic process using as a catalyst a solubilized ruthenium carbonyl complex.  The invention also encompasses the catalyst formed during the process.  A particular desirable embodiment of the invention is the continuous operation thereof in a manner  which minimizes inhibition of glycol formation and represses formation of adverse or undesirable glycol byproducts.
Patent CA-1159643-A (CA)
Inventor: GIEBELER EBERHARD
IPC: B27N7/00
Filed: 1981-10-02
Granted: 1984-01-03
Abstract: ABSTRACT OF THE DISCLOSURE           A novel method of dimensionally stabilizing wood products prepared by a compression molding step comprising heating the wood material at 1.60 to 220°C in a gaseous atmosphere of 4 to 15 bar pressure for a time sufficient to stabilize the dimensions thereof.
Patent CA-1155835-A (CA)
Inventor: NAKAZAWA JUNICHI
IPC: C07D501/57
Filed: 1981-10-23
Granted: 1983-10-25
Abstract: ABSTRACT            "PROCESS FOR PREPARING CEPHALOSPORIN DERIVATIVES"        Cephalosporin derivatives of formula (I):     (I)   (wherein:        R2 represents a lower alkoxymethyl group, a lower alkoxycarbonylalkoxymethyl group, an aralkyloxymethyl group or a hydrogen atom;         R3 represents a substituted or unsubstituted 1H-tetrazol-5-yl group, 1,3,4-thiadiazol-2-yl group or 1H-1,2,3-triazol-5-yl group,  and R5 represents an acyl group) and pharmaceutically acceptable salts thereof are prepared by reacting a compound of formula (II):                          (II) (wherein:        R1 represents a acylamido group, an alkoxycarbonyl-amido group, an aralkyloxycarbonylamido group or a phthalo-ylamino group;         R2a represents a lower alkoxymethyl group, a lower alkoxycarbonylalkoxymethyl group or an aralkyloxy-methyl group;  and R3 is as defined above) with a compound of formula (III):                        R5 - X        (III) (wherein R5 is as defined above and X represents a halogen atom), optionally acidifying the resulting ester to convert it to the free acid and then optionally salifying the acid.    In accordance with the invention, the trans-acylation reaction is effected in the presence of a compound of formula (IV):         (IV) (wherein R4 represents a lower alkyl group, an aryl group or an aryloxyalkyl group) and in a halogenated hydrocarbon solvent containing at least one mole of water per mole of said compound of formula (II).
Patent CA-1191821-A (CA)
Inventor: WELCH PHILLIP W
IPC: B02C25/00
Filed: 1981-11-03
Granted: 1985-08-13
Abstract: Abstract The method of operating and analyzing operation of an electric motor operated rotary drum type grinding mill is based upon detection of a single signal parameter representative of mill efficiency, loading and throughput, namely the motor power or current.  Output readings are presented in form of pictorial representations of mill operation conditions at a variety of current levels thereby permitting unskilled operators to understand instrumentation. The signal is simply derived without any kind of mill modification and is mani-pulated by simple fool-proof signal processing equipment for both instantaneous on-line monitoring and control purposes and for storage of historical per-formance. Thus, either semi-automatic or fully automated mill operation may be simple and effective in maintaining optimum mill efficiency.
Patent CA-1168612-A (CA)
Inventor: HORIKOSHI KOKI
IPC: C10G1/04
Filed: 1982-01-21
Granted: 1984-06-05
Abstract: PROCESS FOR THE OIL EXTRACTION FROM         OIL SAND BY USING CYCLODEXTRIN     ABSTRACT OF THE DISCLOSURE:        Process for the oil extraction from oil sand comprising:  mixing oil sand, cyclodextrin and water with one another to prepare a suspension, leaving it to stand or centrifuging it to separate into an oil, a water and a sand layers, and then collecting the oil layer.
Patent CA-1155204-A (CA)
Inventor: BARRETT EDWARD E
IPC: B25C1/06
Filed: 1982-02-18
Granted: 1983-10-11
Abstract: ABSTRACT OF THE DISCLOSURE An electronically operated portable fastener driving tool is disclosed. Fasteners are driven into a workpiece by a driver blade which is actuated by a solenoid powered by a source of alternating current. Each actuation of the device produces a predetermined plurality of driving strokes being delivered to a fastener. The tool is also provided with means for preventing more than one fastener from being driven during each actuation of the tool.
Patent CA-1184235-A (CA)
Inventor: GILLER HENRICUS F J I
IPC: H01K1/32
Filed: 1982-04-15
Granted: 1985-03-19
Abstract: ABSTRACT:       An electric reflector lamp according to the invention has a blown lamp envelope comprising a concave internally mirror-coated wall portion, a spherical inter-nally mirror-coated wall portion opposite thereto, an annular translucent wall portion between the first two portions and a tubular wall portion at the apex of the concave wall portion.  These wall portions constitute single blow moulding.  The axes of the mirror-coated wall portions coincide, just like their focus and centre of curvature, around which a light source is arranged.  The concave wall portion is parabolic or elliptic, the second focus lying outside the lamp envelope.  The parts of the mirror-coated wall portions, which throw light rays after at most two reflection through the translucent wall portion to the exterior, surround the focus through a solid angle of more than 1.5 .pi. .theta.r.  The spherical wall portion constitutes a mask which prevents light rays from the light source from reaching the translucent wall por-tion other than after reflection.  The lamp does not emit stray light and very effectively concentrates the radiated light.
Patent CA-1185585-A (CA)
Inventor: ELLS JOHN W
IPC: F16K5/06
Filed: 1982-04-26
Granted: 1985-04-16
Abstract: ABSTRACT OF THE DISCLOSURE IMPROVEMENTS RELATING TO SEALS    A sealing assembly (20) for a ball valve comprises two non compressible and relatively movable members, for example the ball (24) and seal housing (26) of a ball valve, having located therebetween a sealing element (32) which is inflatable by the introduction of hydraulic fluid.     The sealing element (32) is located in a recess in member (26) so that when the hydraulic pressure is released the element (32) retracts into the recess to release the sealing engagement and facilitate the relative movement of members (24, 26).  A resilient rubber ring (40) is provided to bias the seal housing (26) away from the position of sealing engagement to also facilitate movement of members (24, 26).  A second sealing element (25) is also provided. Both elements are carried by the seal housing (26) which is in the form of an annular piston movable by the hydraulic fluid.
Patent CA-1186012-A (CA)
Inventor: HAYS DAN A
IPC: G03G15/08
Filed: 1982-05-18
Granted: 1985-04-23
Abstract: ABSTRACT          This invention is directed to a unique development system, apparatus and process for charging insulating toner particles, the apparatus comprising in operative relationship a means for charging insulating toner particles and a means for transporting insulating toner particles, said means for charging, and said means for transporting biased to a predetermined potential; and the process in one embodiment comprising (1) providing a means for charging insulating toner particles, which means contains thereon a triboelectrically active coating, (2) providing a means for transporting toner particles, (3) depositing weakly charged toner particles on the transporting means and (4) contacting the weakly charged toner particles with the triboelectrically active coating in a charging zone situated between the means for charging and the means for transporting, whereat the charges on the toner particles are amplified to a positive or negative polarity. In one specific embodiment, the present invention is directed to an apparatus for simul-taneously metering and charging non-magnetic insulating toner particles, which comprises in operative relationship a metering/charging roll means containing thereon a triboelectrically active coating, a transporting means, a drive roll means, an idler roll means, said transporting means forming a path of movement around said drive roll means and said idler roll means, a toner supply reservoir means, containing therein weakly charged insulating toner particles possessing about an equal number of positive and negative charges thereon, a voltage source means for the metering/charging roll means, a voltage source means for the drive roll means, and the transporting means, a tensioning means, and an imaging member means said metering/charging roll means moving in a direction opposite to the direction of movement of the transport means. The apparatus and process of the present invention are useful, for example, in electrostatographic imaging devices comprised of a charging means, an imaging means, a development means, a fixing means, and a fusing means, the improvement residing in the development means which is comprised of an apparatus for charging toner particles comprised in operative relationship of a means for charging insulating toner particles, and a means fortransporting insulating toner particles, said means for charging, and said means for transporting, biased to a predetermined potential.
Patent CA-1185394-A (CA)
Inventor: GAUTHIER LAURA A
IPC: C08G63/00
Filed: 1982-07-02
Granted: 1985-04-09
Abstract: ABSTRACT         This invention discloses silicone-alkyd resins and a method for their preparation which overcomes prior art problems in the manufacture of such resins.  The method characterized in that it consists of reacting all of the components of the silicone-alkyd resin together simultaneously.